Top
20
Doctor insights on: What Are Allegra And Xyzal Used For

Share
1

1
What are allegra and xyzal (levocetirizine) used for?

What are allegra and xyzal (levocetirizine) used for?

Allergies: Allegra and xyzal are two different types of antihistamines. They are called non sedating antihistamines as older antihistamines like Benadryl (diphenhydramine) cause drowsiness in some people. The entire class of medicines are used to treat allergies or allergic reactions. ...Read more

Dr. Ihab Ibrahim
360 Doctors shared insights

Fexofenadine (Definition)

Fexofenadine is an antihistamine which is used to treat allergies such as hayfever, and hives. It can be taken once or twice a day. It is a second generation antihistamine and does not cause as much drowsiness as other antihistamines such as Diphenhydramine (benaryl) or chlorpheniramine. Always be careful about drowsiness with any antihistamine especially if driving ...Read more


3

3
Is it ok to take 24 Hr Allegra D in the day and a 5 mg Xyzal at night?

Is it ok to take 24 Hr Allegra D in the day and a 5 mg Xyzal at night?

Duplication: I suggest using either product but not both: you are double dosing your antihistamines: Allegra-D and Xyzal. Do not mix these medications. ...Read more

4

4
I'm transitioning from xyzal (levocetirizine) to allegra & my hives are returning. I seem to react to everything--my meds & enviorment. When will allegra kick in?

I'm transitioning from xyzal (levocetirizine) to allegra & my hives are returning. I seem to react to everything--my meds & enviorment. When will allegra kick in?

Reason?: We don't usually switch pills when you are doing well with it. Xyzal (levocetirizine) does have a slightly higher incidence of drowsiness compared to allegra. One would expect Allegra to take effect in about 2 hrs. If the reason for switch is due to drowsiness, then you may up the dose of Allegra to 2 to 4 x daily. If xyzal (levocetirizine) did not have side effects, then there is no reason to change to allegra. ...Read more

5

5
I was prescribed xyzal (levocetirizine) for my allergies. I took an allegra this morning. Should I start the xyzal (levocetirizine) tonight or wait until tomorrow?

Ok: It would generally be ok to take Xyzal (levocetirizine) in the evening after taking an am Allegra, especially if there is a predominance of nighttime symptoms. Good luck! ...Read more

6

6
What antihistamines give me 24hr protection? Allegra 180mg? Can I take Xyzal (levocetirizine) 5mg at night and Allegra 180mg morning? Topping up prove effective?

What antihistamines give me 24hr protection? Allegra 180mg? Can I take Xyzal (levocetirizine) 5mg at night and Allegra 180mg morning? Topping up prove effective?

Yes: Depends on the condition. Most of the newer antihistamine may cover hay fever symptoms for nearly 24 hrs but would not be sufficient to control hives. Antihistamines have a high safety margin on dosing and thus it is ok for you to use both if necessary. ...Read more

7

7
I'm on allegra 180mg in the morning, xyzal (levocetirizine) 5mg at night, plus dymista and immun shots, and I still get a lot of white mucus when I do a sinus rinse why?

I'm on allegra 180mg in the morning, xyzal (levocetirizine) 5mg at night, plus dymista and immun shots, and I still get a lot of white mucus when I do a sinus rinse why?

Some mucus is normal: Your therapies are to control symptoms, but your upper respiratory mucosa is still functional. If sneezing, congestion, runny nose, etc are controlled then I would not be overly concerned with the nasal wash results. ...Read more

8

8
Is it OK to take 180 mg Allegra in AM and 10m Zyrtec AND Xyzal (levocetirizine) at dinner? Allergist said to take TWO Allegra, but I'm worried it's too much

Is it OK to take 180 mg Allegra in AM and 10m Zyrtec AND Xyzal (levocetirizine) at dinner? Allergist said to take TWO Allegra, but I'm worried it's too much

Mixing antihistamine: Generally, it's best to follow one's doctor's instructions. If not wanting to take Allegra twice a day, and wanting to add a different antihistamine such as Zyrtec or Xyzal (levocetirizine), (levocetirizine) it is probably enough to take Zyrtec or Xyzal (levocetirizine) (one of them instead of both of them). Zyrtec and Xyzal (levocetirizine) are very similar. The makers of Xyzal (levocetirizine) say it is more effective than Zyrtec, but they are similar drugs. ...Read more

12

12
If allergic to 1 antihistamine, am I allergc to all? Have seen a few hives after benadryl, (diphenhydramine) xyzal, & now allegra. Coincidence or true allergy?

If allergic to 1 antihistamine, am I allergc to all? Have seen a few hives after benadryl, (diphenhydramine) xyzal, & now allegra. Coincidence or true allergy?

PROBABLY COINCIDENT: It is not possible to be allergic to all antihistamines and these are all different componds you listed. Benadryl, (diphenhydramine) xyzal and allegra.I will like to know what you call allergy, what are the symptoms and what kind of rash if any with these three antihistamine.
It is possible but this kind of allergy will be considered rare
consult your doctor who treated your allergies in first place;may beallergist. ...Read more

13

13
I suffer all types of allergies-food, pollen etc. Can I take allegra (fexofenadine) or levocetirizine for lifetime safely?

I suffer all types of allergies-food, pollen etc. Can I take allegra (fexofenadine) or levocetirizine for lifetime safely?

No: Antihistamine alone is not really that effective especially when one has had serious reactions to foods or stinging insects. You should consult an allergist who can assist you on identifying, avoiding, and treating your allergic conditions. ...Read more

14

14
Prescribed allegra (fexofenadine) m once daily for 2 months and levocetirizine 5mg at night if necessary but feel allegra (fexofenadine) is causing upset stomach and fast pounding?

Prescribed allegra (fexofenadine) m once daily for 2 months and levocetirizine 5mg at night if necessary but feel allegra (fexofenadine) is causing upset stomach and fast pounding?

Then stop it: And check with your doctor, arrhythmia isn't known to be caused by fexofenadine, that was a known side effect of older antihistamines that were withdrawn, but given the symptoms you are suffering and you suspect very much fexofenadine (allegra) to be the cause, you can safely stop and ask your doctor for an alternative, and there are others, continue the levocetirizine, till you see your doctor ...Read more

15

15
Which third generation antihistamine is best for itchy flaky scalp and skin levocetirizine, desloratadine or fexofenadine?

Which third generation antihistamine is best for itchy flaky scalp and skin levocetirizine, desloratadine or fexofenadine?

None of them!: Good morning,
itchy scalp is due to irritation to the nerves of skin of the scalp. There is a nerve signal going from the scalp to the brain telling that there is something not right on the scalp. Correcting the local condition of the scalp such as dryness, scaling, seborrhea, bacterial or fungal overgrowth, and skin flaking condition will relieve the itch. Antihistamines are not useful for this. ...Read more

16

16
Can allegra (fexofenadine) cream be used on eyelids?

Can allegra (fexofenadine) cream be used on eyelids?

Yes: If you have eczema or itching of eyelids you can use Allegra (fexofenadine) cream on your eyelids as long as you don't get it in the eye. If symptoms persists see your family doctor. ...Read more

18

18
Could the med xyzal (levocetirizine) cause ocular migraines to increase? Used to get 1-2 a year, now get 4 a month! They started increasing after xyzal (levocetirizine). Connection?

Could the med xyzal (levocetirizine) cause ocular migraines to increase? Used to get 1-2 a year, now get 4 a month! They started increasing after xyzal (levocetirizine). Connection?

Not expected: Perhaps you are taking xyzal (levocetirizine) because your nasal symptoms are getting worse. Nasal congestion may trigger migraines for some people. Try stopping xyzal (levocetirizine) for 3 days, and if this makes no difference, then it is not the culprit. If an antihistamine is a must, try a different antihistamine. ...Read more

19

19
Why would allegra (fexofenadine) be prescribed?

Many reasons.: Allegra is an antihistamine which can be used for itching of the skin, nose, eyes. It is mainly used to treat allergic reactions and to relieve seasonal allergic eye and nose symptoms. It is not very effective for nasal congestion unless used with another medication such as a nasal steroid or oral decongestant. ...Read more

20

20
Any dangers of overdosing on allegra (fexofenadine)?

Any dangers of overdosing on allegra (fexofenadine)?

Possibly: Allegra (fexofenadine) has been studied at very high doses with no clinically significant adverse events. However, if a high enough dose is taken there may be adverse effects. I would be most concerned about potential cardiac arrhythmias at very very high doses. ...Read more

Xyzal (Definition)

Levocetirizine is an antihistamine that is used to treat the symptoms of hay fever and allergies like runny nose, stuffy ...Read more


Dr. Janice Alexander
104 Doctors shared insights

Levocetirizine (Definition)

Levocetirizine is an antihistamine that is used to treat the symptoms of hay fever and allergies like runny nose, stuffy ...Read more